The Rolex GMT-Master II "Root Beer" (Ref. 126711CHNR) is one of the most recognizable modern Rolex sports watches. It combines Oystersteel with 18 ct Everose gold ("Everose Rolesor") and features a distinctive brown-and-black Cerachrom ceramic bezel. Originally designed for airline pilots, the GMT-Master II now serves frequent travelers by allowing the wearer to track multiple time zones.